Textile treatment tube

ABSTRACT

A textile treatment tube, for example for dyeing purposes, has a thread end holding device at its lower end. This device is in the form of one or more than one thread retaining arm or lug disposed at a short distance from the lower edge of the tube and extending in the circumferential direction thereof.

United States Patent [191 Egyptien et al.

[ June 3, 1975 TEXTILE TREATMENT TUBE [75] Inventors: Josef Egyptien, Aachen; Walter Henning, Alsdorf-Begau, both of Germany [73] Assignee: Messrs. Jos. Zimmermann, Aachen,

Germany [22] Filed: Aug. 17, 1973 [21] Appl. No.: 389,424

[30] Foreign Application Priority Data Aug. 24, 1972 Germany 2241683 [52] US. Cl 242/125.l; 242/18 PW [51] Int. Cl B65h 75/28 [58] Field of Search ..242/118.1,118.11,125.1,

242/18 PW, 18 EW; 68/198 [56] References Cited UNITED STATES PATENTS 3,003,715 10/1961 Seigle 242/125.1

FOREIGN PATENTS OR APPLICATIQNS 332,936 7/1930 United Kingdom 242/I25.1 815,767 10/1951 Germany 242/1181 6/1964 Luber 242/1181 X Hawkins 242/l25.l

Primary ExaminerGeorge F. Mautz Attorney, Agent, or Firm-Mason, Fenwick & Lawrence [57] ABSTRACT A textile treatment tube, for example for dyeing purposes, has a thread end holding device at its lower end. This device is in the form of one or more than one thread retaining arm or lug disposed at a short distance from the lower edge of the tube and extending in the circumferential direction thereof.

11 Claims, 15 Drawing Figures ATEHTEB Jim 3 [975 SHEET TEXTILE TREATMENT TI'IIE FIELD OF THE INVENTION This invention relates to a textile treatment tube. for instance for dyeing threads wound on it. with a thread holding device situated at one end.

DESCRIPTION OF THE PRIOR ART To permit continuous operation in a textile machine when unwinding thread from textile tubes. it is known to join the thread end of a first tube to the thread start of a second tube. and it is necessary that the first tube should have a thread reserve. and that its thread end should be accessible.

Such a thread reserve may be formed by providing. before winding on the tube. its lower end with a series of thread windings clear of the body of thread which will be formed on it during winding. To take up the thread reserve. known tubes are formed with a circumferential groove near their lower edge.

To make the thread end accessible, various devices are known. Thus. in a dyeing tube. it is known to allow the thread end to hang freely downwards from the thread reserve, but in this case. it may happen that the free thread end lies around the lower tube edge and extends into the inside of the tube. In dyeing. this can cause crushing and as a result possibly damage to that part of the thread end within reach of the tube edge. since the tube. in dyeing. rests on its lower edge under pressure on a base or intermediate support. As a result of this resting of the tube on its edge. through-dyeing of the thread portion in question leaves something to be desired. To avoid these disadvantages it is known to provide a textile tube at its lower edge with a space for passage of the thread end. but this is disadvantageous in that the space also constitutes a passage for dye liquor. so that liquor which passes through the body of thread loses pressure.

Also to make the thread end accessible. while avoiding the disadvantages of the means referred to. it is known to equip a textile tube at its lower end with a thread holding device. which is formed by a straight or curved clamping slit projecting from the lower tube edge to a distance therefrom and extending in a straight or curved line from a position on the outer surface of the tube casing into the inside thereof. and thence back to another position on the tube casing. As the thread can be inserted into this slit. crushing of part of the thread end is avoided. In addition, undesirable entry of dye liquor cannot take place. as the slit does not interrupt the tube casing.

Nevertheless. there are still disadvantages with this thread holding device. By virtue of the arrangement of the slit. insertion of the thread end into it is awkward. Also through-dyeing of the portion of the thread end in the slit is unsatisfactory since the dye liquor cannot pass through the slit satisfactorily. Finally. it is not always a simple matter to pull the thread end out of the slit.

An object of the invention is to provide a textile tube having a thread holding device largely without the disadvantages of the known thread holding devices.

SUMMARY OF THE INVENTION According to this invention there is provided a textile treatment tube having a thread holding device at its lower end. the thread holding device comprising at least one thread holding arm mounted at a distance from the lower edge of the tube on the outside of its casing and extending in the circumferential direction thereof. This arrangement of the thread holding device affords the possibility of laying the thread end around the thread holding arm so as to secure it. an operation which. because of the easy access to the arm, may be accomplished simply. and subsequently of applying a series of windings as the thread reserve on the tube casing with more or less complete covering of the free portion of the thread end. Also with this design of the thread holding device, the part of the thread end laid round the arm is directly accessible to the dye liquor. so that satisfactory throughdyeing of this part of the thread end can occur. Also. with this arrangement of the thread holding device. the thread end can be gripped and released from the arm quite simply.

The textile tube of the invention may have a thread gripping depression behind the or each thread holding arm. by means of which gripping of the thread end is facilitated on removing it from the tube.

Preferably the textile tube has a pair of oppositely directed thread holding arms. and a thread gripping depression being arranged between the two arms. This pairwise arrangement of the arms has the advantage that fastening of the thread end can be effected particularly simply. Also, with this arrangement of the arms and by means of the thread gripping depression between them. gripping of the thread end on removing it from the tube is further facilitated.

Preferably the or each thread holding arm and. insofar as available. the or each thread gripping depression, lie within the outer contour of the tube casing. Thus it is avoided that the tube should have any parts jutting outwards which could hinder its manufacture, use and storage. For this purpose. each thread holding arm may be formed by a recess of the adjoining part of the tube casing. and each thread gripping depression may also be formed by a recess of the tube casing.

If the textile tube has a circumferential groove for a thread reserve being situated at a distance from the bottom edge of the tube, then the or each thread holding arm and the or each thread gripping depression may be disposed between the groove and the bottom edge. In this way is achieved good collaboration of the thread holding device with the circumferential groove.

Each thread holding arm may'extend in width from the circumferential groove to a distance from the bottom edge that is rather greater than the thickness of threads to be wound on. Further the or each thread gripping depression may extend with increasing width and depth from the circumferential groove to the bottom edge and extend at its lower portion radially inwards beyond the radial extension of the inner surface of the respective arm. These features of the thread holding device also contribute to the fact that the thread end can be secured in simple manner on the thread holding device. that good through-dyeing of the part of the thread end fixed on the thread holding device can take place. and that the thread end on the thread holding device can be grasped and removed from the tube easily.

If the tube has a circumferential groove to take up a thread reserve. means may be provided which facilitate the holding of the free portion of the thread end in the circumferential groove when the latter is applied around the thread holding device.

For this purpose the bottom surface of the circumferential groove may be formed or provided with a raised portion in the vicinity of the thread holding device. Another embodiment provides that the tube casing has in the vicinity of the thread holding device above and below the circumferential groove a respective recess extending to the groove. In both cases gripping and holding of the free portion of the thread end in the circumferential groove by means of a finger tip is facilitated. Both the raised portion and the recesses make it possible with the finger tip easily to reach the free portion of the thread end in the circumferential groove and to press it against the bottom of the groove.

For the same purposes, in a twin-arm thread holding device, raising of the bottom of the circumferential groove on the one side, and the recesses of the tube casing on the other side, of the thread holding device, may be arranged in the vicinity thereof. Further, with a single arm arrangement of the thread holding device, in the vicinity thereof the bottom of the circumferential groove may have the raised portion and the tube casing may have in the area of the raised portion in each instance a recess extending as far as the raised portion.

The textile tube of the invention may be cylindrical BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevation, partly broken away and in longitudinal section, of a first embodiment of dyeing tube;

FIG. tube;

FIG. 3 is a half section on plane AB of FIG. 1;

FIG. 4 is an enlarged part side elevation, Showing a thread holding device;

FIG. 5 is an enlarged section of part of FIG. 3; FIG. 6a is an enlarged section on plane C-D of FIG.

2 is an underneath plan of one half of the dyeing FIG. 6b is an enlarged section on plane K-L of FIG.

FIG. 7 is a view similar to FIG. 1 ofa second embodiment;

FIG. tube;

FIG. 9 is a half section on plane E-F of FIG. 7;

FIG. 10 is an enlarged part side elevation showing a thread holding device;

FIG. 11 is an enlarged section of part of FIG. 9; FIG. 12a is an enlarged section on plane GH of FIG. 7;

8 is an underneath plan of one half of this dyeing FIG. 7; and

FIG.

12b is an enlarged section on plane N-O of FIG.

120 is an enlarged section on plane PR of FIG. I

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of dyeing tube shown in FIGS. 1 to 6b is frusto-conical, tapering upwardly, and is ofa thermoplastics material.

The casing 20 of the tube, with the exception of its upper and lower end areas, has evenly distributed holes 21 for passage of dye liquor. Spaced from the lower tube edge 22 the casing 20 has a circumferential groove 23 to take up a thread reserve.

A thread holding device is arranged between the groove 23 and the edge 22. This thread holding device has a thread holding cantilever arm 24 extending generally circumferentially of the casing 20. A thread gripping depression 25 is provided behind the arm 24 between the groove 23 and the edge 22.

The arm 24 is disposed within the outer contour of the tube casing 20 (see for example FIG. 5) and is formed by a recess 26 of the adjoining part of the easing 20. In width the arm 24 extends from the groove 23 to a distance from the edge 22, which distance is rather greater than the thickness of a thread to be wound. The free end of the arm 24 is curved, as shown. Between the inner face of the arm 24 and the recess 26 is a gap 27 which extends substantially correspondingly to the edge of the arm 24 and tapers towards the middle of the arm.

The depression 25 behind the arm 24 is also disposed within the outer contour of the casing 20 and is also formed by a recess of the casing 20 (FIG. 5). The depression 25 extends with increasing width and depth from the groove 23 to the edge 22, where it extends radially inwards beyond the radial extension of the inner surface of the arm 24.

Near the arm 24 and spaced from the depression 25 in the opposite direction, the bottom of the groove 23 has a raised portion 31. This portion 31 extends to about half the radial height of the groove 23, see FIG. 6b. Above and below the groove 23, in the area of the raised portion 31, are respective recesses 32 each extending as far as the raised portion 31. In these recesses 32 the tip of a finger can be placed.

When using the tube and the thread holding device, the free end of the thread to be wound on the tube is first placed in the groove 23, so that it is directed oppositely to the arm 24, and lies over the raised portion 31. With a fingertip the operator then grips the free thread end in the area of the raised portion 31 and the recesses 32, and presses it against the bottom of the groove 23. Then the thread end itselfis laid around the arm 24, so that it lies in the space 27 between the arm 24 and the recess 26. Then the following portion of the thread is led over the depression 25 and inserted into the groove 23 in the direction of the raised portion. Thereupon, to constitute the thread reserve, the thread is wound in the groove 23, wherein the free portion of the thread end in the groove 23 is more or less covered by the thread windings. The tube itself can then be wound on with the thread in usual manner, forming the main body of the thread winding.

If when using the tube the thread winding on it is dyed in a dyeing device, there is good through dyeing of the thread end laid around the arm 24 and extending over the depression 25, as this thread end is then directly accessible to the dye liquor.

To tie the end of the thread wound on the tube with the beginning of the thread wound on another tube. it is simply necessary to grip the free portion of the thread end in the region of the depression 25, pull it out of the groove 23, and remove it from the arm 24'. these operations are carried out without difficulty. For tying, it is then only necessary to unwind the thread reserve.

The embodiment of dyeing tube shown in FIGS. 7 to 12c is generally similar to that shown in FIGS. 1 to 6. The parts of the tube which correspond to the tube aI- ready described are given the same reference numerals.

The thread holding device of the tube of FIGS. 7 to 120 is somewhat different from that of the tube of FIGS. 1 to 6b. It has not one thread holding arm. but two cantilever arms 28 and 29. These are arranged pairwise and oppositely directed. Both extend substantially in the circumferential direction of the casing 20. Between the two arms 28, 29 is a thread gripping depression 30.

The arm 28 is the same as the arm 24 in FIGS. 1 to 6b. The arm 29 is the mirror image of the arm 28. The depression 30 between the arms 28, 29 is the same as that of FIGS. 1 to 6b. The bottom of the groove 23 has, near the arm 29, a raised portion 33, which projects radially to approximately half the height of the groove 23. Near the arm 28 there are, above and below the groove 23 respective recesses 34 extending as far as the groove. These recesses 34 extend approximately to the radius centre of the groove 23 and a finger-tip can be inserted therein.

Use of the tube of FIGS. 7 to 120 is similar to that of FIGS. 1 to 6b. The free portion of the thread end is inserted in the groove 23 so that it is situated either in the area of the raised portion 33 or in the area of the recesses 34. Depending upon this, it is then gripped and pressed against the bottom of the groove in the area of the raised portion 33 or of the recesses 34. Depending upon this also. the thread end is then applied first around the arm 28 or first around the arm 29. In both cases the thread end is subsequently placed around the other arm 29 or 28, so that a portion of the thread end extends over the depression 30, in the lower area thereof, which makes it simple to grasp the thread end for tying it to the beginning of the thread wound on another tube.

What we claim is:

l. A textile treatment tube comprising a casing having a thread holding device at its lower end, said thread holding device including at least one thread holding cantilever arm means mounted with an inner end at a distance from the lower edge of the tube on the outside of said casing and extending outwardly to its outer end substantially in the circumferential direction of the easing and a thread gripping depression provided in the casing circumferentially adjacent the inner end of said cantilever arm means on the side of the arm opposite the direction in which the arm extends outwardly.

2. A tube as claimed in claim 1, wherein said thread holding cantilever arm means and thread gripping depression lie within the outer contour of the casing.

3. A tube as claimed in claim 2, wherein each thread holding cantilever arm means is formed by removal of adjacent parts of the casing.

4. A tube as claimed in claim 3, wherein each thread gripping depression consists of a recess in the casing.

5. A tube as claimed in claim 1 additionally including a circumferential groove for taking up a thread reserve, which groove is positioned at a distance from the bottom edge of the tube, wherein said thread holding arm means has a vertical width from the circumferential groove to a termination spaced from the said bottom edge by an amount which is greater than the thickness of threads to be wound upon the tube.

6. A tube as claimed in claim 5, wherein each thread gripping depression extends with progressively increasing width and depth from the circumferential groove to the said bottom edge and lies with its lower portion radially farther to the inside of the tube than the inner surface of said cantilever arm means.

7. A tube as claimed in claim 5, wherein the bottom of the circumferential groove is provided with a raised portion near the thread holding device.

8. A tube as claimed in claim 5, wherein the tube casing is provided near the thread holding device immediately above and below the circumferential groove with a respective recess extending in the axial direction of the tube.

9. A tube as claimed in claim 5, wherein the bottom of the circumferential groove is provided with a raised portion near the thread holding device, the casing has near the thread holding device immediately above and below the circumferential groove a respective recess extending in the axial direction of the tube, the said recesses being arranged adjacent the said raised portion.

10. A tube as claimed in claim 1, wherein said thread holding cantilever arm means comprises a pair of oppositely extending thread holding cantilever arms spaced apart in circumferential direction of the casing wherein said thread gripping depression is provided in the easing between the inner ends of the two arms.

1 1. A tube as claimed in claim 10 additionally including a circumferential groove for taking up a thread reserve positioned a distance from the bottom edge of the tube, wherein the bottom of the circumferential groove is provided with a raised portion near the thread holding device and the casing has near the thread holding device immediately above and below the circumferential groove a respective recess extending in axial direction of the tube, the said raised portion being arranged on one side, and the said recess being arranged on the other side of the thread holding device. 

1. A textile treatment tube comprising a casing having a thread holding device at its lower end, said thread holding device including at least one thread holding cantilever arm means mounted with an inner end at a distance from the lower edge of the tube on the outside of said casing and extending outwardly to its outer end substantially in the circumferential direction of the casing and a thread gripping depression provided in the casing circumferentially adjacent the inner end of said cantilever arm means on the side of the arm opposite the direction in which the arm extends outwardly.
 1. A textile treatment tube comprising a casing having a thread holding device at its lower end, said thread holding device including at least one thread holding cantilever arm means mounted with an inner end at a distance from the lower edge of the tube on the outside of said casing and extending outwardly to its outer end substantially in the circumferential direction of the casing and a thread gripping depression provided in the casing circumferentially adjacent the inner end of said cantilever arm means on the side of the arm opposite the direction in which the arm extends outwardly.
 2. A tube as claimed in claim 1, wherein said thread holding cantilever arm means and thread gripping depression lie within the outer contour of the casing.
 3. A tube as claimed in claim 2, wherein each thread holding cantilever arm means is formed by removal of adjacent parts of the casing.
 4. A tube as claimed in claim 3, wherein each thread gripping depression consists of a recess in the casing.
 5. A tube as claimed in claim 1 additionally including a circumferential groove for taking up a thread reserve, which groove is positioned at a distance from the bottom edge of the tube, wherein said thread holding arm means has a vertical width from the circumferential groove to a termination spaced from the said bottom edge by an amount which is greater than the thickness of threads to be wound upon the tube.
 6. A tube as claimed in claim 5, wherein each thread gripping depression extends with progressively increasing width and depth from the circumferential groove to the said bottom edge and lies with its lower portion radially farther to the inside of the tube than the inner surface of said cantilever arm means.
 7. A tube as claimed in claim 5, wherein the bottom of the circumferential groove is provided with a raised portion near the thread holding device.
 8. A tube as claimed in claim 5, wherein the tube casing is provided near the thread holding device immediately above and below the circumferential groove with a respective recess extending in the axial direction of the tube.
 9. A tube as claimed in claim 5, wherein the bottom of the circumferential groove is provided with a raised portion near the thread holding device, the casing has near the thread holding device immediately above and below the circumferential groove a respective recess extending in the axial direction of the tube, the said recesses being arranged adjacent the said raised portion.
 10. A tube as claimed in claim 1, wherein said thread holding cantilever arm means comprises a pair of oppositely extending thread holding cantilever arms spaced apart in circumferential direction of the casing wherein said thread gripping depression is provided in the casing between the inner ends of the two arms. 